Any experiences out there?
Yes, with me they wanted to meet with me, and they wanted me to just drop everything (even during business hours) and be available to them when/as/because they said so.
I'd suggest that even if your wife and you disagree about the WT and JW thing, it will be better for both to come up with a united front. For example, to use their own nonsense against them, when anyone, including elder's wives, come to talk to her about meeting or anything else without involving you, she can tell that she as a submissive wife has to run that by you, the head of the household.
You on the other hand, as head of household can claim that you have to discuss this (if you want to have more impact, you can tell that you will do it under prayer) with your wife, and tell them that it's in the interest of both your spiritual well beings. If they push it, you can remind them that you are doing things as per their own guidance for how to conduct business related to your family.
Your wife can insists that "you don't allow" her to talk to the elders alone or without you knowing, and that she as a "submissive, obedient" wife, should respect your word. Even if it's all BS, showing that you two are on the same page will have them stop doing that disrespectful thing of attempting at attacking the one they think is the weakest or easier to entice.
Also, you can just call them on their BS and set a boundary flat out and tell them not to be disrespectful to you.